.header {
  height: 50px;
  line-height: 50px;
  width: 100%;
  padding: 0 50px;
  background-color: #444;
}

.header img {
  width: 120px;
  margin-right: 10px;
}

.header input {
  width: 233px;
  height: 24px;
  border-radius: 15px;
  background-color: #666;
}

.main {
  padding: 10px 50px;
  display: flex;
  min-height: 500px;
}

.main .left {
  flex: 3;
  margin-right: 10px;
}

.main .left button {
  margin: 5px 10px;
}

.main .left img {
  width: 30px;
  height: 30px;
}

.main .left span {
  margin-left: 8px;
}

.main .left span a {
  text-decoration: none;
  color: #333;
}

.main .right {
  flex: 1;
}
